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United States dollar

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The United States dollar is the money used in the USA.

Obverse of the series 2021 $1 Federal Reserve Note
Obverse of the series 2021 $1 Federal Reserve Note

It is also used in many other countries. In 1792, a law called the Coinage Act was passed. This law made the dollar the main unit of money. It set the value of one dollar to be 100 cents.

US One Cent Obv
US One Cent Obv

Before this, people often used Spanish silver coins. One dollar was worth the same as a Spanish silver dollar.

Potosi Real
Potosi Real

You can use coins or paper bills. Most paper bills are called Federal Reserve Notes. People often call them "greenbacks" because they are green.

Obverse of the series 2021 $5 Federal Reserve Note
Obverse of the series 2021 $5 Federal Reserve Note

The Federal Reserve is the central bank that manages the money. In the past, the dollar was linked to gold or silver. This meant the money had a set value in metal. In 1971, the link to gold ended. Today, the dollar is used for many global trades. It is one of the most important types of money in the world.

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Potosi Real.jpg
File:Alexander Hamilton portrait by John Trumbull 1806.jpg
Alexander Hamilton portrait by John...
File:Continental Currency One-Third-Dollar 17-Feb-76 obv.jpg
Continental Currency One-Third-Dollar...
File:One US dollar 1917.jpg
One US dollar 1917.jpg
File:NNC-US-1907-G$20-Saint Gaudens (Roman, high relief).jpg
NNC-US-1907-G$20-Saint Gaudens (Roman,...
File:WhiteandKeynes.jpg
WhiteandKeynes.jpg
File:US One Cent Obv.png
US One Cent Obv.png
File:US_union_shield_penny_reverse.png
US_union_shield_penny_reverse.png
File:Jefferson-Nickel-Unc-Obv.jpg
Jefferson-Nickel-Unc-Obv.jpg
File:US Nickel 2013 Rev.png
US Nickel 2013 Rev.png
File:Dime Obverse 13.png
Dime Obverse 13.png
File:Dime Reverse 13.png
Dime Reverse 13.png

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